I still say Trump won't pick a VP. From what I've seen he wouldn't need to pick one legally unless he is elected... I don't see anything about voters getting to know who it would be before the election... or am I misunderstanding these rules.
There is simply no benefit to picking a VP. Too many forces want Trump gone so having a named successor is dangerous for him.
When he dies the world ends as far as he cares, why would he plan for that?